
#coding:utf-8


L = ['Adam', 'Lisa', 'Bart', 'Paul']

#enumerate change list L to list L2 which's element is a touple  eg. (0,Adam)
for index ,name in enumerate(L):
    print(index,':',name)

# zip press two List to a list A,every elemnt in A is a touple  
for index, name in zip(range(1,len(L)+1),L):
    print (index, '-', name)